© ISO 2012 Wrought aluminium and aluminium alloys — Extruded rods/bars, tubes and profiles — Part 3 Extruded rectangular bars — Tolerances on shape and dimensions Aluminium et alliages d’aluminium cor[.]
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Wrought aluminium and aluminium alloys — Extruded rods/bars, tubes and profiles —
Part 3:
Extruded rectangular bars — Tolerances
on shape and dimensions
Aluminium et alliages d’aluminium corroyés — Barres, tubes et profilés filés —
Partie 3: Barres rectangulaires filées — Tolérances sur forme et dimensions
INTERNATIONAL STANDARD
ISO 6362-3
Third edition 2012-07-01
Reference number ISO 6362-3:2012(E)
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© ISO 2012
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Foreword iv
1 Scope 1
2 Normative references 1
3 Terms and definitions 1
4 Materials 1
5 Tolerances on shape and dimensions 2
5.1 Dimensional tolerances 2
5.2 Shape tolerances 3
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Trang 4ISO (the International Organization for Standardization) is a worldwide federation of national standards bodies (ISO member bodies) The work of preparing International Standards is normally carried out through ISO technical committees Each member body interested in a subject for which a technical committee has been established has the right to be represented on that committee International organizations, governmental and non-governmental, in liaison with ISO, also take part in the work ISO collaborates closely with the International Electrotechnical Commission (IEC) on all matters of electrotechnical standardization
International Standards are drafted in accordance with the rules given in the ISO/IEC Directives, Part 2 The main task of technical committees is to prepare International Standards Draft International Standards adopted by the technical committees are circulated to the member bodies for voting Publication as an International Standard requires approval by at least 75 % of the member bodies casting a vote
Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights ISO shall not be held responsible for identifying any or all such patent rights
ISO 6362-3 was prepared by Technical Committee ISO/TC 79, Light metals and their alloys, Subcommittee
SC 6, Wrought aluminium and aluminium alloys.
This third edition cancels and replaces the second edition (ISO 6362-3:2001), which has been technically revised
ISO 6362 consists of the following parts, under the general title Wrought aluminium and aluminium alloys — Extruded rods/bars, tubes and profiles:
— Part 2: Mechanical properties
— Part 7: Chemical composition
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Wrought aluminium and aluminium alloys — Extruded rods/
bars, tubes and profiles —
Part 3:
Extruded rectangular bars — Tolerances on shape and dimensions
1 Scope
This part of ISO 6362 specifies the tolerances on dimensions and shape of wrought aluminium and aluminium alloy extruded rectangular bars, having thicknesses in the range from 2 mm up to 240 mm and widths in the range from 10 mm up to 600 mm
It applies to extruded rectangular bars
2 Normative references
The following referenced documents are indispensable for the application of this document For dated references, only the edition cited applies For undated references, the latest edition of the referenced document (including any amendments) applies
ISO 6362-1, Wrought aluminium and aluminium alloys — Extruded rods/bars, tubes and profiles — Part 1: Technical conditions for inspection and delivery
3 Terms and definitions
For the purposes of this document, the terms and definitions given in ISO 6362-1 apply
4 Materials
For the purposes of this part of ISO 6362, wrought aluminium and aluminium alloys are divided into two groups, which correspond to varying difficulty when manufacturing the products
The division into Group I and Group II of the most commonly used general engineering alloys is specified in Table 1 Grouping of other alloys is subject to agreement between the purchaser and supplier
Table 1 — Alloy group
Group I
1070, 1070A, 1060, 1050, 1050A, 1350, 1100, 1200
3102, 3003, 3103
5005, 5005A, 5051A, 5251
6101, 6101A, 6101B, 6005, 6005A, 6005C, 6110A, 6012, 6018, 6023, 6351, 6060, 6360, 6061,
6261, 6262, 6262A, 6063, 6063A, 6463, 6065, 6081, 6082, 6182
Group II
2007, 2011, 2011A, 2014, 2014A, 2017, 2017A, 2024, 2030
5019, 5049,5052, 5154A, 5454, 5754, 5056, 5083, 5086
7003, 7204, 7005, 7108, 7108A, 7020, 7021, 7022, 7049A, 7050, 7075
NOTE The four-digit numbers listed are taken from the Registration of International Alloy Designations and Chemical Composition Limits for Wrought Aluminium Alloys, published by the Aluminum Association, 1525 Wilson Boulevard, Suite 600, Arlington, VA 22209, USA (known as “Teal Sheets”).
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`,,```,,,,````-`-`,,`,,`,`,,` -5 Tolerances on shape and dimensions
5.1 Dimensional tolerances
5.1.1 Tolerances on width and thickness
Tolerances on width and thickness shall be in accordance with Table 2 and Table 3
Table 2 — Tolerances on width and thickness for alloy group I
Dimensions in millimetres
Width
b
Thickness t tolerances for thickness ranges
Range Tolerances 2 ≤ t ≤ 6 6 < t ≤
10
10 < t ≤
18 18 < t ≤ 30
30 < t ≤ 50
50 < t ≤
80 80 < t ≤ 120
120 < t ≤
180 180 < t ≤ 240
50 < b ≤ 80 ± 0,60 ± 0,25 ± 0,30 ± 0,35 ± 0,40 ± 0,50 ± 0,60 — — —
80 < b ≤ 120 ± 0,80 ± 0,30 ± 0,35 ± 0,40 ± 0,45 ± 0,60 ± 0,70 ± 0,80 — —
120 < b ≤ 180 ± 1,0 ± 0,40 ± 0,45 ± 0,50 ± 0,55 ± 0,60 ± 0,70 ± 0,90 ± 1,0 —
180 < b ≤ 240 ± 1,4 — ± 0,55 ± 0,60 ± 0,65 ± 0,70 ± 0,80 ± 1,0 ± 1,2 ± 1,4
240 < b ≤ 350 ± 1,8 — ± 0,65 ± 0,70 ± 0,75 ± 0,80 ± 0,90 ± 1,1 ± 1,3 ± 1,5
350 < b ≤ 450 ± 2,2 — — ± 0,80 ± 0,85 ± 0,90 ± 1,0 ± 1,2 ± 1,4 ± 1,6
When the tolerance is specified either all plus or minus side, the value in this table shall be doubled.
Table 3 — Tolerances on width and thickness for alloy group II
Dimensions in millimetres
Width
b
Thickness t tolerances for thickness ranges
Range Tolerances 2 ≤ t ≤ 6 6 < t ≤
10
10 < t ≤
18 18 < t ≤ 30
30 < t ≤ 50
50 < t ≤
80 80 < t ≤ 120
120 < t ≤
180 180 < t ≤ 240
50 < b ≤ 80 ± 0,70 ± 0,30 ± 0,35 ± 0,45 ± 0,60 ± 0,70 ± 0,70 — — —
80 < b ≤ 120 ± 1,0 ± 0,35 ± 0,40 ± 0,50 ± 0,60 ± 0,70 ± 0,80 ± 1,0 — —
120 < b ≤ 180 ± 1,4 ± 0,45 ± 0,50 ± 0,55 ± 0,70 ± 0,80 ± 1,0 ± 1,1 ± 1,4 —
180 < b ≤ 240 ± 1,8 — ± 0,60 ± 0,65 ± 0,70 ± 0,90 ± 1,1 ± 1,3 ± 1,6 ± 1,8
240 < b ≤ 350 ± 2,2 — ± 0,70 ± 0,75 ± 0,80 ± 0,90 ± 1,2 ± 1,4 ± 1,7 ± 1,9
350 < b ≤ 450 ± 2,8 — — ± 0,90 ± 1,0 ± 1,1 ± 1,4 ± 1,8 ± 2,1 ± 2,3
When the tolerance is specified either all plus or minus side, the value in this table shall be doubled.
5.1.2 Corner radii
Maximum corner radii shall be in accordance with Table 4
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Table 4 — Maximum value of corner radii
Dimensions in millimetres
Thickness
t
Maximum value of corner radii
Alloy group I Alloy group II
5.1.3 Fixed-length tolerances
If fixed lengths are supplied, it shall be stated in the order The permissible tolerances on fixed lengths are given in Table 5
If no fixed or minimum length is specified in the order, rectangular bars may be delivered in random lengths The actual lengths and tolerances on random lengths shall be agreed between the purchaser and supplier
Table 5 — Fixed-length tolerances
Dimensions in millimetres
Width
b
Tolerances on fixed length
5.1.4 Squareness of cut ends
The squareness of cut ends shall be within half of the fixed-length tolerance range specified in Table 5 for both fixed and random lengths For example, for a fixed-length tolerance of +100 mm, the squareness of cut ends shall be within 5 mm
5.2 Shape tolerances
5.2.1 General
The shape tolerances specified in 5.2.2 to 5.2.4 apply to all tempers, except tempers O and TX510 type tempers The deviation shall be measured with the bar supported on a horizontal base plate, such that the deviation is minimized by the weight of the bar
5.2.2 Flatness tolerances
Flatness tolerances shall be in accordance with Table 6 The deviation from flatness e shall be measured in
accordance with Figure 1
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Dimensions in millimetres
Width
b
Tolerances for convexity
or concavity
e
Key
1 base plate
2 thickness
b width
ei deviation from flatness
Figure 1 — Measurement of deviation from flatness
5.2.3 Straightness tolerances
For rectangular bars of thickness equal to or greater than 10 mm, the straightness tolerances shall be in accordance with Table 7.
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Table 7 — Straightness tolerances
Dimensions in millimetres
Width
b
Thickness
t
Straightness tolerances Per 1 000 mm of
total length (l1 )
h1
In any 300 mm
(l2)
h2
For rectangular bars of thickness less than 10 mm, the straightness tolerances shall be agreed upon between the supplier and purchaser
The deviations from straightness h1 and h2 shall be measured as shown in Figure 2, with the bar placed on a horizontal base plate so that its mass decreases the deviation
Dimensions in millimetres
Key
1 base plate
Figure 2 — Measurement of deviation from straightness
5.2.4 Twist tolerances
Twist tolerances shall be in accordance with Table 8
The twist νi shall be measured in accordance with Figure 3
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Dimensions in millimetres
Width
b
Tolerances on twist
νi
Per 1 000 mm of length Over the total length
Key
1 base plate
2 thickness
b width
νi twist
Figure 3 — Measurement of twist
5.2.5 Squareness tolerances
Squareness tolerances are specified in Table 9
The deviation from square shall be measured as shown in Figure 4
Table 9 — Squareness tolerances
Dimensions in millimetres
Thickness
t
Maximum deviation from square
Z
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Key
Z maximum deviation from square
Figure 4 — Measurement of deviation from square (cross-section)
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